Wylfa Rolls-Royce SMR Project

Wylfa on Anglesey is the selected site for an initial fleet of three Rolls-Royce small modular nuclear reactors.[1][2]

Current position

Rolls-Royce SMR and Great British Energy–Nuclear signed a delivery contract in April 2026, enabling site-specific design and early supply-chain work.

The programme would add roughly 1.4 GW of nuclear generation if all three units are delivered.

The contract enables design and early procurement for three reactors; it is not final investment approval for an operating plant.

Sources